Effective Alternative to External Fixators

A 10mm version of MedShape Inc.’s DynaNail Ankle Arthrodesis Nail is now available. This smaller DynaNail expands the use of the intramedullary (IM) nail to patients with narrow bone anatomies that require smaller fusion devices. DynaNail is an effective alternative to external fixators for performing tibiotalocalcaneal (TTC) arthrodesis procedures. Leveraging the shape memory properties of nickel titanium (NiTiNOL), the nail sustains compression across the joint on the level of an external fixator. Compression across the joint is important for ensuring the joint bones remain in close apposition and in promoting healing. Eliminating external fixators reduces surgery time and minimizes the need for follow-up procedures. Because it is inserted like traditional IM nails, DynaNail also significantly reduces physician training time.

Introduced late last year, the original DynaNail is 12mm in diameter. The new 10mm size offering will expand the use of DynaNail to patients with narrow bone anatomies. In the procedure, surgeons work to increase the size of the implant tunnel across the TTC joint until they get chatter from the drill. Once the surgeon completes the tunnel drilling, they now have two implants to choose from based on the tunnel size. The 10mm DynaNail serves as a less invasive treatment option while still retaining the unique sustained compressive power garnered from the internal NiTiNOL element.

"As a leader in shape memory devices, we are proud to respond to physician demand with the 10mm offering and are enthusiastic about its efficacy in orthopedic surgery," states Jeremy Blair, team leader for DynaNail. "DynaNail's successful use is a clear indicator of the exciting future it holds for podiatrists and orthopedic surgeons everywhere."